公开(公告)号：US20240093720A1

公开(公告)日：2024-03-21

申请号：US17932756

申请日：2022-09-16

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Mateusz KESEK ,  Tomasz ROZPUTYNSKI

IPC: F16C3/02 ,  B64D35/00

CPC classification number: F16C3/02 ,  B64D35/00 ,  F16C2240/60 ,  F16C2240/70 ,  F16C2240/90 ,  F16C2326/43

Abstract: A propeller shaft assembly for an aircraft engine includes a shaft having: an annular wall extending circumferentially about a shaft axis and circumscribing a hollowed interior defining a cavity in a front end portion of the shaft, the annular wall having an outer surface and an inner surface facing radially inwardly to the cavity; and a front flange projecting radially outwardly from the annular wall. The front flange includes a hub side surface defining an interface plane and adapted to abut with a propeller hub. The shaft also includes a reinforcement web defining an end wall of the cavity, the reinforcement web extending radially inwardly from the inner surface of the annular wall. At least part of the reinforcement web is radially aligned with the front flange. At least one perforation extends axially through the reinforcement web.

公开(公告)号：US20240229720A1

公开(公告)日：2024-07-11

申请号：US18151747

申请日：2023-01-09

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Louis BRILLON ,  Mateusz KESEK

IPC: F02C7/32

CPC classification number: F02C7/32 ,  F05D2220/323 ,  F05D2260/4031

Abstract: An accessory gearbox of an aircraft engine includes an accessory gearbox cover mounted to the accessory gearbox. The accessory gearbox cover has an outer surface with accessory mounts disposed thereon. A first accessory device is mounted to the accessory gearbox at a first mount of the accessory mounts. Aa second accessory device is mounted to the accessory gearbox cover at a second mount of the accessory mounts. The second mount is spaced apart on the accessory gearbox cover from the first mount. A link member dynamically couples the first accessory device to the second accessory device. The link member has an elongate body extending between a first end and a second end. The first end is coupled to the first accessory device and the second end is coupled to the second accessory device to mechanically interconnect the first and second accessory devices independent from the accessory gearbox cover.

公开(公告)号：US20240240592A1

公开(公告)日：2024-07-18

申请号：US18154134

申请日：2023-01-13

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Louis BRILLON ,  Mateusz KESEK

IPC: F16H57/031 ,  F02C7/25 ,  F02C7/32

CPC classification number: F16H57/031 ,  F02C7/25 ,  F02C7/32 ,  F05D2220/323 ,  F05D2260/30 ,  F05D2260/4031 ,  F05D2260/96

Abstract: An accessory gearbox of an aircraft engine includes a cover mounted thereto. The cover defines a centrally extending axis and has an outer surface with accessory mounts disposed thereon. First and second accessory devices are mounted to the gearbox at first and second mounts spaced apart on the cover. A planar linking member dynamically couples the first accessory device to the second accessory device. The linking member extends transversally relative to the axis and has a first side opposite a second side with a first opening extending therethrough. The first opening is aligned and matingly receiving at least a portion of the first accessory device therethrough. The linking member has a second opening extending therethrough. The second opening is aligned and matingly receiving at least a portion of the second accessory device therethrough. The linking member mechanically interconnects the first and second accessory devices independently from the cover.

公开(公告)号：US20240093721A1

公开(公告)日：2024-03-21

申请号：US17932762

申请日：2022-09-16

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Mateusz KESEK ,  Tomasz ROZPUTYNSKI

IPC: F16C3/02 ,  B64D35/00

CPC classification number: F16C3/02 ,  B64D35/00 ,  F16C2240/30 ,  F16C2240/70 ,  F16C2326/43

Abstract: A propeller shaft assembly for an aircraft engine includes a shaft having a bore extending through the shaft at a front end thereof, the front end of the shaft having an outer surface facing radially outwardly from the shaft and an inner surface spaced apart from the outer surface and facing radially inwardly to the bore. A front flange extends radially outwardly on the outer surface, the front flange defining a hub side surface adapted to abut with a propeller hub. A reinforcement rib extends radially inwardly towards a central axis of the shaft. At least part of the reinforcement rib is radially aligned with the front flange.

公开(公告)号：US20240093641A1

公开(公告)日：2024-03-21

申请号：US17932748

申请日：2022-09-16

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Mateusz KESEK ,  Tomasz ROZPUTYNSKI

IPC: F02C6/20 ,  B64C11/02

CPC classification number: F02C6/206 ,  B64C11/02 ,  F05D2220/323

Abstract: A propeller shaft assembly for an aircraft engine includes a shaft having a bore extending through the shaft at a front end thereof, the front end of the shaft having an outer surface facing radially outwardly from the shaft and an inner surface spaced apart from the outer surface and facing radially inwardly to the bore. The shaft has a front flange extending radially outwardly on the outer surface, the front flange having a base merging with the outer surface of the shaft. A sleeve is coupled to the shaft within the bore by an interference fit between the sleeve and the shaft, at least part of the sleeve axially aligned with the front flange. The sleeve axially extends from a front to a rear sleeve end, the rear sleeve end axially offset from the engine side surface of the front flange at the base of the front flange.

公开(公告)号：US20220275837A1

公开(公告)日：2022-09-01

申请号：US17186210

申请日：2021-02-26

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Marta HADLO ,  Mateusz KESEK ,  Maciej PIOTROWSKI

IPC: F16D1/08 ,  F16C3/02 ,  F02C7/00

Abstract: Woodruff key coupling systems for torque transmission are provided. An example Woodruff key system includes a rotatable shaft having a keyseat defined therein. The keyseat includes a pocket engaged with the Woodruff key, a first keyseat extension extending in a first axial direction from the Woodruff key relative to the shaft, and a second keyseat extension extending in a second axial direction opposite the first axial direction from the Woodruff key relative to the shaft. Respective depths of the first and second keyseat extensions are less than a depth of the pocket of the keyseat.